Water Disposal

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josej Power-User Join Date: Mar 2008 Location: Mumbai Posts: 250 Good Answers: 2	Water Disposal 06/23/2010 3:49 AM
	Hii, Ref to above mentioned fig, this scheme is used for water disposal to lift station, water comes from Hydrocarbon storage tank, This sump tank is typically 2.0M in Height, I would like to know how water gets lifted from this pit and travels another 5-8 M to Lift station W/O any pump or other element Regards Jose
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Anonymous Poster	#1 Re: Water Disposal 06/23/2010 10:40 AM
	the graphic is too small to be able to read.
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Tornado Guru Join Date: May 2009 Location: Richland, WA, USA Posts: 21017 Good Answers: 795	#2 Re: Water Disposal 06/23/2010 1:31 PM
	If 1) the pump has once been primed, 2) the level controls work properly, and 3) there are no leaks in the check valve and pump suction piping; then the pipe from the sump to the pump will remain full of water, and the pump will remain primed. The water is pushed into the pump by atmospheric pressure. __________________ In vino veritas; in cervisia carmen; in aqua E. coli.
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#3 Re: Water Disposal 06/24/2010 4:33 AM
	More information is needed. What is downstream? Does it have some form of positive displacement pump, ejector, or vacuum-generating device? __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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bioramani Guru Join Date: Jun 2009 Location: Bangalore, India Posts: 725 Good Answers: 24	#4 Re: Water Disposal 06/24/2010 5:37 AM
	If it is a sealed tank with oil coming in on top of the water, the lower density of oil will ensure it floats and pushes don the water. This has to get out through the drain pipe reaching to the bottom of the tank. The driving force is the pressure of incoming oil. Bioramani __________________ bioramani
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CaptMoosie Guru Join Date: May 2009 Location: Red Hook, New York (Mid-Hudson River Valley) Posts: 4362 Good Answers: 179	#5 Re: Water Disposal 06/24/2010 9:09 AM
	By siphon action, as long as the dischage pipe reamins full and "primed". Signed, CaptMoosie, LPE/PhD __________________ "Veni, Vidi, Vici"; hendiatris attributed to Gaius Julius Caesar, 47 B.C.
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josej Power-User Join Date: Mar 2008 Location: Mumbai Posts: 250 Good Answers: 2	#7 In reply to #5 Re: Water Disposal 06/26/2010 12:35 AM
	Thanks for all the info Regards Jose
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bioramani Guru Join Date: Jun 2009 Location: Bangalore, India Posts: 725 Good Answers: 24	#6 Re: Water Disposal 06/24/2010 11:26 AM
	Is the idea to ensure that the hydrocarbon storage tank is always full without any vapour space on top as a precaution against explosions? In which case the water is used as a higher density mobile tank bottom. It just keeps going in and out of the tank to an over head retaining tank. Bioramani __________________ bioramani
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Anonymous Poster (1); bioramani (2); CaptMoosie (1); josej (1); PWSlack (1); Tornado (1)

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